Apparatus for raising liquids



June 5, 1928.

Patented June 5, .i l

I U NIT'EID L STATE-s 'PATENT' ori-"ice",

-JENs'oR'TEN BovING, 0F WESTMINSTER LONDON, `ENGLAND.

/ APPARATUS FOR f Application :ned February 1o, 1926, ser'iaiNo.

rl`his invention relates to liquid raisingap# paratus of the air-lifttype. In suchappaf. Vratus as at present known the l1qu1d ls raise-d inan uptakeor ascensionl conduit by means sinking ofawell, boreholeor thevlike which' of compressed air lwhich is admitted to itv it is the chiefobject ofthe present invention to dispense with. f v l, f

j-A'ccording to the invention theapparatusf comprises lan4 ascensionconduitl which dips into the water `or other eliquidto be raised andthe' upperend ofwhich enters a-clo'sed vchamber (herein v'termedzthelsuction chamber)l where acontinuous lsuction or partial ldevice forintroducing air atat-inospheric'4 vacuum is maintained'b'yexternalmeans, a

pressure into the lower endof the ascension ucondiiit,` and another or.descending condu1t thelower end of which dischargesinto thereservoiruplto which the liquid is toibe 'lifted andv the upper end ofwhich isA in direct communication withtheV liquid in the Y, suctionchamber so that the two' conduits land the said chamber form as1phon,the

, scending conduit (although much shorterl solid or unsaerated liquidcolumn in theldethan the ascension conduit) being suiciently heavierthan the aerated column in the ascenjl sion `condult toensurefcontinuous movement upwards in the ascension conduit-'and downiwards lin the' descending conduit sothat the] liquid level in thesuction chamberremains" l A l l catesw1th /on'eor'moreupwardly extendingv practically constant. I u f l 'For maximum eiliciencythe point ofintroduction into .the ascension conduit-ofthe air at atmosphericpressure' is just above-the` Y .level ofthe liquid .to be. raised andjto`e'nsure that .this point isL kept constant in relationvr t theliquid level which may-"vary, the deiy vice for, introducing` the* `air4is. preferably' carried by a floatisupported by the, liquid f Vto beraised. l This devicemay-be constituted* by abent pipe one end of whichprojects into-v the lower end ofthe ascension conduit-tand.. the otherendV of which is connected tothej float and communicates withtheat'mosphere.

Inorder that Ythe said'invention-maygbe clearly-understood `andreadilyJcarried :into

v effect, the same will now be described more the kflared upper end `'A'vseparation of the facilitated. rIyhe aforesaid devicefpradconduit Aata'height wliichfis 'just'wabove `RAISING, LIQUID'S.

87,371, and irl Great Britain octb'er 1s, was.

drawing which is a vertical section shewing f a formof apparatusinaccordance with this lnvention. f e( y A is the ascension conduit thelower end of which dips a short distance-into the" liquid to be raisedwhich is indicated lat'-v l, this liquid being hereinafter referred'toas the low level liquid. conduit the lower end of which communi-y cateswith the liquid in the reservoir Bto* whichthe liquid froml the lowerlevelk is'to be raised, the liquid in the reservoirb'eing hereinafterreferred to as thefhigh level v liquid and being indicated-'by 2. 3C'isthe suction .chamber provided withl` a pipe', C whichisconnected to ,amechanica-lsuction pumpor to ahydraulic'suction pumpsuch asf'thatdescribed'in'the'specilication of my concurrent patent application`Serial No. 251,448, filedv February 2, ieasbased-Qo' English applicationNo. 5498 vdated@ February 27, 1925. The ascensionx conduit A enterst-hesuctionchamber' C and preferably has .a flared'upper end A asshownf'thedescending conduit Bk also" communicates with 'the' liquid 'in the saidsuction chamber.

The level of theliquid'in the chamber 1C is preferably slightly below'the upper edg'l'e'of from the ascension conduit A flowing'` vover thelip .thus provided and 1in this'inanner the lair.V from E'the lliquidlis mittingair' atV atmospheric' pressure/into ,the lower endofthe-ascension conduit Acomi prises a 'perforated'jhollw member` attheend of a' central pipe Dnwhic'h'cmmuni- B is the descending ,as shawn',the liquid pipesv D2 arrangedn outside they conduit( A, i

D3 arrangedaroundthe conduit I` A; The hollow rmemberv Dis arrangedvwithin .the Y the surface of the lw level liquid lsoa'sto .obtain.maximum veiiici'ency" as aforesaid.

The. `floats` *D8I maintain" this relative 'position irrespective ofany` rise and V'fa'llof the low level liquidl. vIn "the constructionshown the ascension cor'llduitV A fis* constituted fbyfafpipe arrangedcentrallywithin another pipe Bfthe' .annular s'pacefbe'tween lthe pipesAandBf constituting the""descendy fully' *with*r reference to the accompanying'.

C,'and the liquid deprived ot the air de-' scends to the reservoir Bthrough the conduit B and in this manner a continuous siphoning actionis obtained. To facilitate `the starting vot the apparatus the mouth cpieces Zzniay be litted with cocks which are vshut at first but areopened when the vacuum has been established in the chamber C. The solidor iin-aerated liquid column in vthe conduit- B although being muchshorter than the aerated liquid column in the .conduit A issui'liciently heavier than vthe aeratedvcolumn to ensure a continuoussiphoning action so that the liquid level in the chamber C remainspractically constant. Tlierheight'ot the column of iin-aerated i vliquidin the conduit B depends upon the degree of vacuum in the chamber C andthe reservoir Bis thereforearranged in a position suitable orthe suctionit is intended to employ inthe chamber C.

What I claim and desire to secure `by Letters Patent of the UnitedStates is l. Apparatus for raising liquids, comprising an. ascensionconduit which is rigid throughout its lengthvand dips intothe liquid tobe raised, a closed chamber withl which the upper end ot said conduitcom-- municates and in which a continuous suction or partial vacuum ismaintained, a de- `vice for introducing air at atmospheric 'pressureinto therigid lower end ot' said conduit at a.. position just above thelevel of the liquid to he raised,l said device being positioned insidesaid ascension conduit, a float` which carries said device and issupported by the liquid to beraised, said iioat being arranged outsideof the ascension conduit, a reservoir up to which the liquid is to belifted, ,and a .discharge conduit the lower end of which discharges intosaid reservoir andthe upper end ot which is fin `direct' communicationwith the liquid in said chamber so that the two conduit-sand the chamberform a siphon.

2.r Apparatus for raising liquids, comprising an ascension conduit whichisrigid throughout itslengtli .and dips into the liquid to be raised, aclosed' chamber with which the upper end of said conduit communicatesand in which a continuous suction orV partial vacuum is maintained, adevice tor introducing air at atmospheric pressure into the rigid lowerend of said conduit at a position just above the level of `theliquid to`be raised, said device being positioned iiiside said ascensionconduit,a float nwhich carries said device and is supported by theliquid to be raised, -said float being arranged outside of the ascensionconduit, a reservoir upto which the liquid is `to be lifted, and adischarge conduit around the ascensionconduit, the lower endfofthedischarge conduit discharging into said reservoir and the upper endbeing in direct communication with the liquid `in said chamber so thatthe two conduits and the chamber forni a siphon. c

3. Apparatus tor raising liquids,'coinpris ing an ascension conduitwhichV dips into the liquid to be raised, a closed chamber with whichthe upper endo-f said conduit communicates and in which a continuoussuction or partial vacuum is maintained, a lbent pipe one end of whichprojects into the lower end ofthe ascension conduit and theother end ot'which communicates with the atmosphere, a float which carries saidpipeand is supported by the liquid to be raised, said floatvbeing ar#ranged outside of the ascension conduit, a reservoir up to which theliquid is to be lifted, and a discharge conduit ysurrounding a portionot said ascension conduit, thev lower end lot jsaid discharge conduitdischarging int'o said reservoir and the upperl end of which is indirect communication with thelliquid in said'chamber so thatf-the twoconduits and the chamber torina siphon.

e.. Apparatus for raising liquids, comprising an ascensionvconduitvvhich dips into-the liquid to beraised, a closedchamber withwhich the upper end. of said conduit communicates and in whichacontinuoussucv tion or partial vacuum is maintained,a` bent pipe onevend yof which projects into the'lower end of the ascensiongconduit and ithe other end ot which communicates with the atmosphere, a iioatywhichcarries said pipe'and is supported by the yliquid to bey raised, said,fioat being positionedv outside 'ot' the ascension conduit, areservoirupto which the liquid is tobe lifted, and a discharge conduitaround the ascension conduit, the lower end ot' the discharge conduitdis charging into said 'reservoir and vtheupper end being in directcommunication with the liquid inv said chamber so that the two conduitsand the chamber form av siphon. L

5. Apparatus tor raising liquids, compris` ing an ascension conduitwhich dipsinto the liquid to be raised,`aclosed chamberwith which theupper end of'saidconduit communieates and in which a continuous suctionl or partial vacuum is maintained, a bent'pipe one end of whichprojects-into the lower end ofthe ascension conduit, and the other endof which communicates withthe atmosphere, a perforated hollow member vonthe y:former end of said pipe, said member-being arranged just above thelever of the liquid to be raised, a float which carries said pipe and issupported bythe liquid to be raised, said float being arranged outsideof the ascension conduit. a reservoir up to which the liquid is to belifted, and a discharge conduit the lower end of which discharges intosaid reservoir and the upper end of which is in direct communicationwith the liquid in said chamber so that the two conduits and the chamberform a Siphon. v

6. Apparatus for raising liquids, comprising an ascension conduit whichdips into the liquid to be raised, a closed chamber with which the upperend of said conduit communicates and in which a continuous Suction orpartial vacuum is maintained, a bent pipe one end of which projects intothe lowerend of the ascension conduit and the othery end of whichcommunicates with the atmosphere, a perforated hollow member ontheformer end of said pipe, said member being arranged just above the levelof the liquid to be raised, a float which carries .said pipe and issupported by the liquid to be raised, said ioat being arranged outsidethe ascension conduit, a reservoir up to which the liquid is to belifted, and a discharge conduit around the ascension conduit, the lowerend of the discharge conduit disoharging'into said reservoir and theupperV end being in direct communication with thegliquid in said chamberso that the two conduits andthe chamber form a Siphon.

JENs oRTEN Bovine.'vk

